The last time Rubin talked about Android activations was back in June, when he said that 500,000 devices were being activated daily, and that they were seeing week-to-week activation growth of 4.4%. There’ve been about 25 weeks between the two tweets. Some quick math reveals that week-to-week growth since June hasn’t been anywhere close to the 4.4% Rubin was seeing. It’s now closer to 1.4%.